mumbling

An act in which someone mumbles something

Japanese Meaning

もごもごと不明瞭に話す行為 / ぶつぶつと言いながら何かを伝える行為

His mumbling at the back of the room distracted the speaker.

部屋の後ろでの彼のもごもごした声が講演者の注意をそらした。

Sense（1）

An act in which someone mumbles something

The second is the contrast with the inarticulate stumblings, mumblings, evasions and half-truths of our current president.

mumblings

（ plural ）